The Truth About the Ram 6.7 Cummins Diesel
Exploring the 2022 and Newer Models at Mark Martin Motors
Shoppers looking for a heavy duty truck around Ephrata, PA or anywhere in Lancaster County often consider a Ram equipped with the 6.7 Cummins diesel. At Mark Martin Motors, located at 4126 Oregon Pike, this specific engine platform passes through our lot daily. Evaluating the 2022 and newer models reveals clear advantages and a few notable drawbacks that every prospective buyer should understand before making a purchase decision.
5 Things We Love About the 6.7 Cummins
1. It is a True Commercial Engine
Ram does not actually manufacture this engine. Cummins builds it in Columbus, Indiana, treating it as an industrial grade powerhouse before Ram drops it into their trucks. The engine is vastly overbuilt for standard pickup use, tuning it to 370 horsepower while the physical block is capable of handling significantly more stress in commercial applications.
2. Effortless Low End Torque
The 2022 model produces 850 pound feet of torque that feels entirely effortless. Drivers frequently describe the Cummins power curve as pulling like a locomotive. The steady, constant power delivery makes towing heavy trailers across Pennsylvania highways much easier to manage.
3. The Right Fuel Pump
Ram corrected a major mechanical flaw starting in 2021. The 2019 and 2020 models utilized the problematic Bosch CP4 fuel pump, which caused widespread failure and subsequent recalls. Moving to the 2021 and newer models means getting the highly reliable CP3 fuel pump right from the factory.
4. Simple to Service
Because this engine exists in endless commercial vehicles and industrial equipment, the aftermarket and service networks are massive. Independent diesel shops easily source parts and understand the architecture, which prevents long wait times for backordered components when repairs are necessary.
5. Rebuild Instead of Replace
Modern gas engines often require a complete replacement when they fail, but the Cummins utilizes a parent bore cast iron block built to be overhauled. When the cylinders finally wear out, owners can bore and hone the block, install new pistons, and refresh the engine entirely instead of scrapping it.
5 Things We Hate About the 6.7 Cummins
1. The 68RFE Transmission
The inline six diesel will easily outlive the automatic transmission bolted behind it. The 68RFE 6-speed found in the Ram 2500 suffers from overheating, valve body pressure leaks, and burnt clutch packs. While 3500 High Output models get the stronger Aisin unit, the standard 2500 transmission remains the primary weak link.
2. The Weakest Tune in the Class
Ram offers the most conservative power output compared to its domestic rivals. The standard Cummins puts out 370 horsepower and 850 pound feet of torque, while the GM Duramax generates 470 horsepower and 975 pound feet of torque. Ford and GM consistently push about 100 more horsepower and torque straight off the lot.
3. Frustrating Emissions Systems
Like all modern diesels, the DPF, DEF, and EGR systems require hard use to function correctly. Using the truck for occasional short trips or light towing prevents the exhaust system from getting hot enough to complete proper regeneration cycles, ultimately leading to expensive emissions failures.
4. It is Very Nose Heavy
The massive cast iron inline six places a significant amount of weight directly over the front axle. The steering feels notably heavy, and riding without a trailer exaggerates the front end dive. This extra weight also accelerates wear on suspension components like ball joints and struts.
5. Poor Factory Fuel Filtration
The high pressure common rail system requires immaculate fuel, but the factory filters are considered too coarse to stop microscopic debris. Water or dirt slipping past the factory filter can destroy the injection pump and injectors, resulting in a five figure repair bill. Adding an aftermarket AirDog, FASS, or CAT filter system is highly recommended to protect the engine.
Stop by Mark Martin Motors Today
The 6.7 Cummins remains an incredibly reliable platform for serious towing. If you are searching for a clean, fully serviced truck within a few hours of Ephrata, our team is ready to help you find the right fit.
Check out the full video breakdown below: https://www.youtube.com/watch?v=o096EcStGDU